Machine for feeding sheets to folders, presses, &amp;c.



. 0. A. JUENGST.

MACHINE FOR FEEDING SHEETS TO FOLDERS, PEESSES, 6w. APPLICATION FILED JULY 14, 1911. 1,Q55,39 Patented Mar. 11, 1918.

2 SHEETSSHEET 1.

I 0. A. JUENGST. MACHINE FOR FEEDING SHEETS TO FOLDERS, PRESSBS, 6w. APPLIGATION TILED JULY 14. 1911.

1,055,639. Patented Mar. 11','1913.

2 SHBET-QSHEET 2.

VAILABLE COPY CHARLES A. J JENGSI', O}? iflfiiiffilii FALL NE N TZ'GEE.

IIIACHINE FDR FEEDING SHEETS. T0 FOLDERS, P. 83$, 5%.

Specification of Letters Patent. l afignfiefl li iay "Application filed July 1 1911. Serial No. 638,442.

To all IO/2.0772, it may concern Be it known that 1, CHARLES A. JUENGST, o. ciiizen of the United States, rcsicling at Croton Falls, in the county of \Vosi-chcsier seniing the devices of my invention. Fig. 2 is o. side elevation and section at about the broken line or, w, of Fig. 1. Fig. Q dis.- gg'rmninaiicelevation and purl]; section owing the principal features of my inveir 5 and rf'stziie of New York, have invented an sh improvementin Machines for F ii: 21 exaggerated size over Fig. Fig. S eets lo Folders, Presses, $56., of which the a vertical section-end partial elevati n iii {4 lowing is u specification. .t ihe broken line y, y, of Fig. 1 looli My invention relates to .cleviccs for ieed- "Word the right hand and in larger 1 361435 ingsneels progressively from d, pile or b.11 1; (.flcrfllilflSS. Fig. 5 is a vertical section of siiccis to folding machines, printing partial elevation at about the broken line presses or other devices Where it is; do 2, of Fig. 3. Fig. 6 is a ylan F1, Y s .'reLl,-oi' to which i is dcsircil 4'o :1. ion ll'lli'llllzll section at the broken sheet at n, time for any purpose. of .l ig'. 6 showing i 'ic essential pa Hereiofore sheets have been for? rogres g mmiic device or my invention.

vcly. .1 at isone ai' time from the top of a view similar To Fig. 7 sliowin pile or bank of sheets, hn Lliilicnllics is ices as ionble, and i I have been experienced in preventing loo min showing: c rioin sheet lifting devices. 7 nun i being simultaneously :lcnvciu' (-1 represents inc bed of a n' l i'i of ifl '75 2O fil in insuring only one sheei; at a. lime be fi lWO Standards 41!"! P f fli to tho conveying devices l'hg -ofny gin/Si l0 0i. ill? machine SECUIiil any for the after manipulation and utilization ii-o; Pr .0 ilie bell and occupying of ihe sheet in any printing pr ss, folding PIMXLIOEI. t) is power shaft n bearic s machine or other suitable maul is. show? on of aid sifindalfi 8% in :1 device of my invention 1 provide Sl1llfi,{l 5 Show his hciirii 's, gear meshing yes: w; iln? 0nd she power .21.; by 'ii",50 means roiziiion 2115i 35. power are coinnninicaied to the power shaft of the machine; the power shaft, per so. he

means for supporting a superpiiisccl pile oi. hon: of SlfifiS, means for imparting thereto I-ollec lxclv the desired inclinziion moons isting in shingling ilie'sh as 30 ihc are supports-cl in position. 7. also eniploy revolnlilc means for further sliinggling ilic sheets 'litflil the loom or bottom side of ion solely referred to in the (is mtion. ii 3 pile oi bunk and so gradually for flITli i: he Slizllii synced apart cqum ms 1 1 ingineh lowermost sheet from the pile of Twin 'ZUCM Center of The msclir sheets into the main feeding device. 2. for- (lcviw provide :1 uioninlicslly aclinol cl-3i llic piie of shes cling (i.i'i .ijS each par 01" said stair also in suitable in.

iopszl o. i moved l the f A l I prov cc. wiih sniiisolo lieu 1 4:; s rsliini which devices are :1. c1 53V pneulo tho lo n? of ihe shaft a7 and about in nmticslly actuated devices, which latter are ill? e l1- izioninl plane.

V 1 I a h onlv released io again bring inio operation Elle Bl P w 21ml (Z more gears L z,

ihe rcvoluble devices as each siieei: leaves the nmin forwarding (ls-vices. i also employ pneumatic devices pro icrsbly at either side of lll main fin-wording dcviccs tiic func- (ion of which to simuly ZliEKl insure the cvcn delivery of ihe sheets by the ion-(ar i- In the drawing, 1' ignre l a plan reprenini 11" iii-wily above one another in some vertical plane and meshing with one another so that the gear b on ihe pow shailit e not only operates the gear (Z on the shaft (E but also operates The gear 0 on shaft 0. 0n ihc slnili fl anal at The opposite end Pic-roof i no the gear (Z there is s sprockei and a smiicli'ct a on the shaft (1, a choir. pessin oroomhihe. ssiil sprooiietsi ol' communicating the TOtstmnol inc show a no me?- shol'tr. h ere is also a sprocket I) on the end oi the shaft and there is a port of iliGf-H'lZ-RClilllt hereinafter described.

mil" having a sprocket f -on a. movablelines.

and revoluble upon the shaft 12 and this invention.

and a chain 4 passes over the sprocket b and f to communicate the power of the shaft 6 to the shaft 7. On opposite sides of the machine there are parallel fences or plates 9 forming guides for the sheets as they pass through the machine. These plate members usually are adjustable according to the width of the sheets. There are also sheet supports or plates 5 6 7 8 and 9 more or less in number, which are parallel to one another and occupy the same horizontal plane, and the sheets passing through the machine are moved over the surfaces of these supports or plates.

' 10 and 11 represent sheet feeding rollers of any press; the rollers 10 being in suitable bearings shown illustratively in Fig. 2 and which form no part of my present invent-ion. The rollers 11 are advantageously supported shaft 12 is carried at its respective ends'by arms 13 pivoted to fixed arbors 14:. connected to and at the ends supported in standards a a These arms 13 at the hubs which connect the same to the arbors 14 are preferably clamped to the .arbors and these arbors may be provided with collars adjacent to said hubs for fixing the position of the said arms.

The parts hereinbefore described are usual in sheet forwarding devices and they form part of any usual sheet forwarding device, but form no necessary part of my The special features of my invention 1'6-' late to the following devices: On the arbors 14 adjacent to the'standards a I provide arms 15*upon sleeves through which said arbors pass and on which said arms are adapted to move freely; the same preferably being located next to the standards by collars. These arms 15 at their free ends are I26,three of said rods fof said sideframes comprises the racks 25 fof curved form. This slidable member as a -.unit is held in position and may be moved over the surface of the a depending nut 24, wheel 23; said ithe shaft On :slidable member at 'carrying :30, each }Each arm 2-)- comes below the weighted or ,cam end of the arm 15, said arm and its roller 16 hearing on the arm 29. Each arm 31 adjustably connectedf thereto by bolts and slots as shown in Figs. 3 and 9. The under surface of eacharm 30 is recessed and each recess comes directly 30 carries a head .the rod 32 of advantageously weighted, that is to say, they are provided wlth a downward curved cam end shown plainly in Fig. 3 by dotted These arms 15 carry rollers 16 and the shaft 6 is provided with .cams h k locateddirectly above the rollers 16. Upon the shaft 0 there are also sheet forwardingrollers i i which are located directly above the rollers b on the power shaft 6. These rollers i i are placed in line with the movement of the sheets and have a portion of their periphery as a segment of greater diameter than the balance of the rollers as shown particularly in Figs. 2 and 3; and I provide sprockets 17 n the shafts c and 12 and a chain 18 exten ing between and over said sprockets whereby the rotati'dn of the shaft 0 is communicated to the shaft 12 and to its rollers 11. The portions of'the rollers the sheet forwarding rollers 21 2' apparent that the .top of the pum inactive. l m upon the outer faces of which nected combing or shingling. rollers Z m :composed of fiber cylinders on short arbors secured to the wheels. Attached to the movable member are upwardly inclined arms 0 0 pivotally connected to oneof the rods 26. The upper ends 'pivotally connected .site ends of a shaft 2'- 2" of greatest diameter run inkclosc juxtaposition to the surfaces of the rollers -6 and I are thereby adapted to nip between them i successive sheets to be forwarded; the sheet l -treme ends of the arms 1' 1' forwarding movement being only between the parts i of the rollers z' 2' and the rollers 12 In the lower portion of the machine I provide air exhaust umps 19 associated with the shaft -e and operated thereby. These pumps may be of any desired character and they are connected by the hose 20 to the pneumatic pumps 21. These pumps 21 are connected to and supported by a slidable frame member which iscomposed of similar side frames is supported upon the bed a and movable along the slide-ways of said bed; said similar side frames 70 5: being rigidly connected together by several rods being shown. A part bed by means of screw 22 and hand- I provide arbors 27 fixed one end to the side frames la 70 and each a sleeve 28, an arm 29 and an arm of which rock on the arbor 27.

over the center of the pneumatic pump 21; the pump connected with the piston. of the pump entering said recess; the function of said pump and its rod 32 bein to lift the head 31 and the arm 30. This is also the function or functional tendency of the arm 15 and its weighted and and the froller 16 with each rotation of each cam h or it with the rotation of the shaft 0 and From Fig. ,4 it will be rod 32 is made in two parts'connected by a coupling sleeve pinned to one rod. The base of each coupling sleeve rests upon the 21 which forms a support piston when the parts are I provide on the shaft f wheels are confor the rod an of these arms 0 0 are to otherarms r r at the pivots 33; in other words, at the oppo- 33; the arms 1* r continuing the longitudinal continuity of the arms 0 0 The exare connected by the pivotal conthe arms of the shaft 34 which also forms nection with these ends .of

which forms the pivots i.

slidable member carrying the opposite sides of the A fence members g which continue the ion gitudinal continuity of the fence member g g, and i ,provide sheet support plates 5 pivotally connected to the shaft 34 end the 5 outer members of which are advantageously tormed'asone with the fence members g 9 I provide pswls 35 and brace bars 36 connccted therewith upon-pivots 37 common thereto. The pawlsengage the racks formed as parts of the movable frame me iberand the brace bars have a locking connection at 38 to the arms 9* 7' which also as sists in holding the fence members g f to the arms 1' r for the reason that the pivotal connection 37 of the pawls and brace bars is upon the sides of the fence members 9 I further provide bars 39 eXt-endingout horizontally from the standards (1. and guidefingers 40. These guide-fingers are shown especially'in Figs. 1, 2 and 3. They are connected to adjustable heads 41 upon the bars 39 and they may be moved through said heads and clamped in position,or the heads and fingers may be made adjustable along the bars 39 so as to obtain: by means of the two adjustments the proper position of the fingers 40. I provide between the shafts b and c and secured to perts of the support plate 7 pneumatic head. devices '1: shown particularly in Figs. 6 7 and 8. These form part of support arms which as Will be seen from Figs. 1 and 3, extend back to connection with parts of the plate 7 and the head device 1; is made with diverging tubular members '0 One branch oi the hose 20 is connected to one tubular member 41 and'the other branch of the'hose 20 connected to the other tubular member c so that the pneumatic device extends integrally from the pumps 19 through the head o to the pumps 21 and a pneumatic pressure is in evidence in the pumps 21 when there isa sheet-overlying the heads c. i

It will be noticed from Figs. 6 and "(that 45 the upper surface of the head 12 is flat and that across the head and centrally across the opening in the head is a plate 4:2. This plate 42 performs the function of preventing the sheet of paper being drawn down into tie opening in the head. The small area of each l18fl.d.'2l provides for aneilicientpneumatic or suction action, but" not such 11 positive pneumatic or suction action as would hold the'sheet to be forwarded innnovably-to the face of'the pneumatic device so that any effort to forward the same would causeit to buckle or pucker. This-surface provides not only for the holding action but allows a sufiicient slip over the surface of the pneumatic device to enable the sheet to be forwarded between the rollers b and 2' 2' In the operation of theidevice,'the sheets as superposed in the machine to be forwarded are supported above the Wheels 5 m an their combing or shingling rollers 3 m upon the plates 5 6 i 8 9 and the other support it and between fences g and and preferably in an inclined position which is controlled by the position of the arms 0 0 and r r. t is possible to move along upon the bed of the machine the mo able frame devices with the shatt f the Wheels Z we and their rollers the arms 0 o" and 'r r, :tences g g and the parts connected there h as Well as the pneumatic pumps 21 by means of the nut 24, screw 22 and hand-wheel 23, or duplicates of screw, nut and hand wheelaccording to the dimensions of the sheets that are to be forwarded and Whatever the'inclination imparted to the sheets or the superposed pile or bank, their forward edges will rest against the guide-lingers 4:0 and the sheets of the pile be more or less shingled by virtue of t against these fingers.

in the operation of the device the sheets are normally supported by the con'ibing or shingzling rollers Z m of the wheels Z m the lowermost. sheet of the pile resting thereon, and the rotation of the shaft j and the said roller; in the direction of the arrows has the tendency not only of shing'ling the but advancing the ioverniost sheet of the pile; the shingling effect being partly controlled by the guide ti-ngers 40. The parts are so timed that the parts i of the forwarding rollers 2 27 come into position, shown in Fig. 3,iat about the inn-- :nent that the advancing end of the lower most sheet comes into position between "the rollers 57 and the part tadl'lhll the sheet is taken betiv'eei'i said parts and with their course the mothe sheet comes over the face of the pneumatic headsjc rotation advanced, and ment the. er'i ancing end of the suction or pneiunatic action i inevi-' deuce, and by virtue of the pumps-21 and their rods 2:3, the heads 31. and the arms 30 are lifted so that the pile of sheets is at once support'and their rest L slightly elevated above the upper suriuce oi gl ng rollers Z m Simultaneous with this and force the arms 15 at their Weighted iclding action; the latter parts bearing on he arms 29 being sutlicient to hold up the arts 30 31 while the cams [i it bear upon the rollers 16 in theircroiation in case the suction action at any time gives out and, also to insure the holding up action so long" i :clion the can s h h bear upon the rollers m and their combing or shinas the sheets are being forwarded between the rollers 71 and the parts into the grip of the rollers 10 and 11 which continue the tor-warding action of each separate sheet.

oon each sheet passes between the rollers '18 and 11 and from the bight ot the parts i of the rollers b and i the canes I; also pass out or away from their hearing upon the rollers 16 and the sheet passing off of the pneumatic heads o, the pneumatic action is at once broken and the pistons of the pumps 21 and their rods fall with the parts 30 and 31, to again place the superposed sheets of the pile upon the support of the combing or shingling rollers Z m of the wheels Z m and the forwarding action here inbefore described for one sheet is repeated for each succeeding sheet.

From the foregoing description and illus tration it will be apparent that the suction devices 0) o and pumps 19 and 21 are in two series one at either side of the center line of the machine in the direction of motion and center line of the sheets; also that the rollers 1' z" and b are similarly placed. Each series, that is, a pump 19, suction device o and pump 21 on one side of this line are operative and effective independently of the similar parts on the other side of this line, consequently in the operation of forwarding a sheet, if one side is advancing appreciably faster than the other side, that side first reaches a suction device oand i's'heldand simultaneously its pump 21 lifts one end of the pile of sheets above the roller 2' or i The other side now advances until its advancing edge touches the other suction device and the other end of the pile of sheets is also lifted. The further advance of the sheet into the bight of the forwarding rollers is thereafter true and even.

I claim as my invention: *1. In a machine for feeding sheets to folders, presses, etc., and" in combination, means fpr supporting a superposed pile'or bank of sheets, means for feeding the sheets one at a time from the bottom oft-he pile, means for forwarding the sheets, means for temporarily elevating the pile of. sheets above the said feeding devices as the for warding devices act, and pneumatically operative devices which are active as each delivered sheet passes through the forwarding devices and which actuate and control the means for temporarily elevating a pile of sheets and which are inactive in the interim between the sheets.

2. In a machine for feeding sheets to folders, presses, etc, and in combination, means for supporting a superposed pile or bank of sheets, means for feeding the sheets one at a time from the bottom of the pile, means for forwarding the sheets, pneumatic devices for temporarily elevating the pile of sheets above said feeding devices as the forwarding devices. act, means assisting the latter devices in holding the pile of sheets in an elevated position, said latter means actingwhen each sheet passes through the forwarding devices and said latter means and pneumatic devices simultaneously to effect the elevation of the pile of sheets.

ocaeae folders, presses, &c., and in combination, means for supporting a superposed do or bank of sheets, revolubledevices for eedin the sheets, one at a time, from the bottom 0 the pile, means for forwarding the sheets, means adapted for temporarily elevating the plle of sheets above said feeding devices simultaneously wittnthe action of the forwarding means, and pneumatically oppretive devices acting upon eachsheet with the engagement thereof by the forwardin means and which at once pneumatically e fects the movement of the means fortem warding the sheets, means adapted for temporarily elevating the pile of sheets above said feeding devices simultaneously with the action of the forwarding means, and pneumatically operative devices acting upon each sheet with the engagement thereof by the forwarding means and which at once pneumatically effects the movement of the means for temporarily elevating the pile of sheets.

5. In a machine for feeding sheets to folders, presses, &c., and in combination, means for'supporti ng a superposed pile or bank of sheets, revoluble devices for shingling the sheets from the bottom of the pile upward at the advancing edges and simultaneously feeding the sheets, one at a time,

from the bottom of the pile, means for forwardingthe sheets, means adapted for temporarily elevating the pile of sheets above said feeding devices simultaneously with the action of the forwarding means, and pneumatically operative devices acting upon each sheet with the engagement thereof by the forwarding means and which at once pneumatically effects the-movement of the means for temporarily elevating the pile of sheets, and automatically actuated devices for assisting in elevating and holding said sheets in an elevated position as each sheet passes through the forwarding devices.

6. In a machine for feeding sheets to folders, presses, etc., the combination with the bed of the machine and a sliding frame mounted thereon and means for operating the same, of a shaftand revoluble devices;

mounted t 1ereon, .sup"port plates which to gether witl "said revoluble devices serve to support afsuperposed pile of sheets, adja- .cent swinging devices adapted also to act as supports for said sheets and means for operating the latter devices periodically so as to lift the sheets of the pile above the 3.111 a machine for feeding sheets to revoluble devices. v

chine for feeding sheets etc., the combination xvi machine uni a sliding ira'ne .eon anal mennsxfor opera in: a shaft and revolnble new es ereoin support pleies vi tou saicl revoln'ole eviees serve io posed pile of sliee eojacona ees adapted also to act as so i sheets, means, for opei ices periodieeliy so as 1o 13 i the pile above the revolnble devices having an adjusts e a pivotal relation to saicl sin whereby the desired inclinee imported to at least a portion e of superposed sheets.

vchine for feeiiing Sl1%i755 t i i, etc, the coinliiinition W 1e inoeoine enel o sl'ciin if l 'reo'n and means for one s siief l' and revo ,oport plate:

inbie devices 'i sheets, means for I re; periodically so as the pile above the revolnlile devices having an adjustable *ion encl. a pivotal relation to said sli-i 'inie, whereby the desired inclinetion will be imparteo to at least a portion f the pile J superposed sheets, paWls form 2 last named devices 3115. rocks irt of the sliding" frame which 7 by the paw'ls for determining osition of the said cleric np'porting means. In a. machine for feeding sheets to folders presses, etc.. the combination Wit means in; .leeellng the sheets one. at n. in

- bottom of the pile ancl means sheets therefrom and ffilwl of pneumatic devicline beneath and associated with receiving and fori 'ardin g i:

must pumps connected aliere' omatic pumps also connect i mane p ."lp pile oi? at and 6.111. the action of WAHCliUg devices.

10. In machine for feeding sheets to folde s presses, etc, the combination with means for feeding the sheets one at n time from the bottom of vthe pile and means XGCPiVi." the sl ee therefrom and forwarding 1 some of climatic devices ioezsteci i;

inmfliine o esth 'neets above the feeding the shoe :l associate i ens pnni'n r actuated by said pneumatic temporarily elevating the pile of sheets above the feeding devices at and.

ction of the sheet forwarding ilei-EIlCi automatically actuated devices for assisting the pneumatic clevicesin elevating the pile of sheets and holcling the in an elevated position as each sheet posses ii the forwarding devices.

:2 machine for feeding sheets vto 75 }T)EGS5S &c. anrl in combinetion or supporting a superposed pile or ere neans for feeding the sheets 1e bottom of the pile, ms and a, shaft there w a shaft therefor beneath the some and coasting therewitln cans on the forn'ier Silil ft, arbors and pivoted arms the ein having downward projections on I ir ends roliersn iounted on the free 35 said arms above said projections neieci upon by said cams and l word with seiil s and proo'teci devices for temporarily elep of sheets above the said feed inn 3:; 7; part iielcl by the pro one. associated parts and means re Eng {incl for forwarding the sheets.

in a machine for feeding sheets to "elders presses, 820., and in combination, ,5.

means for snnporting e superposed pile or iienk of sheet means for feecling the sheets one at n, time iroin the, bottom of the pile, sheet forwarrling rollers anti a shaft thereier rollers and a shaft therefor be- 10o,

" e same and (so-acting therewith, imecl rollers each having :1 portion of 'r peripl'iery of greater clinmeter end seirl part of so fie nt length to contactwith the other forwarding roilers in advancing each 105 on. the latter shaft eriors and. s thereon havingdoivnward prot-neir free ends, rollers mounted on. the free end of said armsa oove said pr jeetions anol the rollers: acted upon by s (yin anfl pressed downward with szaill arms and pro ections, pivoted ClGVICQE for tern- In a un but tecl parts, and mg the machine for feeiiing sheets to tiers, presses, 63s., and in combination,- iiDS for supporting a superposecl pile or ank of sheets, means for feeding the sheets rollers anti.

ing rollers meeting therewith and 21' shaft therefon cams on the letter shaft, {UDOYS and pivoted arm ject re at s time from the bottom of the piie,

hereon having clownwsrri 'prov r "free ends oi seji i the rolle s 31 folders, presses,

arms and projections, pivoted devices for temporarily elevating the pile of sheets above the said feeding devices, in part held by the said projections and associated parts, means receiving and for forwarding the sheets, and pneumatically operative devices, acting when each sheet passes through the forwarding devices to elevate the pile of sheets, the same co-acting with the aforesaid devices for temporarily elevating the pile of sheets above the feeding devices.

14. In a machine for feeding sheets to folders, presses, &c., and in combination, means for supporting a superposed pile or bank of sheets, means for feeding the sheets one at a time from the bottom of the pile, rollersand a shaft therefor, sheet forwarding rollers co-acting therewith and a shaft therefor, cams on the latter shaft, said latter rollers each having a portion of their periphery of greater diameter and said part of sufficient length to contact with the other rollers in advancing each sheet, cams, on the latter shaft, arbors and pivoted arms thereon having downward projections on their free ends and the rollers mounted on the free end of said arms above said projections and the rollers acted upon by said cams and pressed 'down with said arms and projections, pivoted devices for temporarily elevating the pile of sheets above said feeding de vices, in part held by the said projections and associated parts, means receiving and for forwarding the sheets, and pneumatically operative devices acting when each sheet passes through the forwarding devices to elevate the pile of sheets and the same co-acting with the aforesaid devices for temporarily elevating the pile of sheets above the feeding devices.

15. In a-machine for feeding sheets to etc., the combination with means for supporting a superposed pile or bank of sheets, means for shingling the sheets from the bottom of the pile upward at the advancing edges and simultaneously feeding the sheets one at a time from the bottom of the pile, pneumatic or suction devices in the line of movement of the sheet and adapted to engage each sheet as delivered by the means for shingling and feeding the sheets, and revoluble means mounted at opposite sides of and operating in line with the movement of the sheets and with said pneumgtic devices for receiving and for forwarding the sheets.

16. In a machine for feeding sheets to folders, presses, etc., the combination withmeans for supporting a superposed pile or bank of sheets, revoluble means for shingling the sheets from the bottom of the pile upward at the advancing edges and simultaneously feeding the sheets one, at a time from the bottom of thepile, pneumatic or etligsuction devices the line of movement of the sheet and adapted to engage each sheet as delivered by the means for shingling and feeding the sheets, and revoluble means mounted at opposite sides of and operating in line with the movement of the sheets and with said pneumatic devices for receiving and for forwarding the sheets.

17. In a machine forfeeding sheets to folders, presses, etc., the combination with means for supporting a superposed pile or bank of sheets, revoluble devices for shingling the sheets from the bottom of the pile at the advancing edges and simultaneously feeding the sheets one at a time from the bottom of the pile, suction devices ada to engage the advancing edge of each substantially as it is delivered from the oluhle feeding devices, revoluble devices mounted at opposite sides of and operatin in line with the movement of the sheets an rev? and for forwarding the sheets, which are constructed with a portion of their periphery for engaging the sheets, whereby the suction devices engage the sheets momentarily until the forwarding devices come into play.

18. In a machine *for feeding sheets to folders, presses, etc, the combination with means for supporting a superposed pile or bank of sheets, devices for shingling the sheets from the bottom of the pile at the'advancin'g edges and simultaneously feeding the sheets one at a time from the bottom of the pile, said shingling devices coming at opposite sides of the center of the sheet and center of movement, suction devices adapted to engage the advancing edge of thesheet substantially as it is delivered from the revoluhle feeding devices, pneumatic devices co-acting with the suction devices for temporarily elevating the pile of sheets above the said feeding'devices, said suction and pneumatic elevating devices also being at opposite sides of the center of the machine or center of movement and adapted to act independent of one another, whereby the suction device and the lifting device on one side may act if the sheet is not advanced evenly and toe suction and lifting devices on the other side act thereafter for performing the same function as soon as the sheet is evened up.

19. In a machine for feeding sheets to folders, presses, etc., the combination with means for supporting a superposed pile or bank of sheets, devices for shingling the sheets from the bottom of the pile at-the advancing edges and simultaneously :-'feeding the sheets one at a time from the bottom of the pile, said shingling devices coming at opposite sides of the center of the sheet and center of movement, suction devices adapted to engage the advancing edge of the sheet Substantially as it is delivered from the rev.

nuances pneumatic elevating devices also being at opposite sides of the center of the machine or center of movement a'nd adapted to act independent of one another, whereby the suction device and the lifting device on one :6 si reev act if the sheet is not advanced evenly and the suction and lifting devices on the other side not thereafter for performing the same function as soon as the sheet is evened up, and revoluble devices receiving and for forwarding the sheets. I Signed by me this 5th day of July 1911. CHAS. A. JUENGST. Witnesses:

GEO. T. PINOKNEY,. E. ZAOHARIASEN. 

